ML18017A167

Urges Early Generic Review of Reactor Sys Transient Analysis Code.Util Is Committed to Payment of Proportionate Share of Review Fee.Outlines Intended Uses of Code

ML18017A167
Person / Time
Site:	Susquehanna
Issue date:	04/29/1980
From:	Curtis N PENNSYLVANIA POWER & LIGHT CO.
To:	Harold Denton, Parr O Office of Nuclear Reactor Regulation
References
NUDOCS 8005140450
Download: ML18017A167 (2)

Text

REGULATORY INFORiYIAT ION OIS I R I BUT ION SYS I'E'< (RIDS)

ACCESSION NBR: 8005140450 OUC ~ OA TE: 80/04/29 "l0 l'AR I ZEO: NO DOCKET ¹ FACIL; - Susquehanna Steam Electric StationP Unit lP Pennsylva 05000387 50-388 Susquehanna Steam Electric StationP Unit 2P Pennsylva 05000388 A ~ AUTHOR <FF ILIATION CU T IS N '6 P ~ ~ Pennsylvania Power 8 Lign,t Co.

REC IP NA~lE

~ REC.IP IET" T AFF IL I A I ION OFNTONPH ~ RE Office of Nuclear Reactor>> Requlation PARflPO ~ OS Auxiliary Systems tlrancn

SUBJECT:

Urges early generic review of reactor sys transient analysis>>

coae.util is committed to oayment of orooortionate share of review fee.Outlines intended uses of code.

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TWO NORTH NINTH STREET, ALLENTOWN, PA. 18101 PHONEME (215) 821 ~ 515'I April 29, 1980 Mr. Harold R. Denton, Director Docket No.: 50-387 Office of Nuclear Reactor Regulation 50-388 Attn: Mr. Olan D. Parr, Chief Light Water Reactors Branch No. 3 Construction Permit: CPPR-101 Division of Project Management CPPR-102 U.S. Nuclear Regulatory Commission Washington, DC 20555

Dear Mr. Denton:

The Pennsylvania Power and Light Company (PP&L) is "actively developing a safety and transient analysis capability to support the operation of our Susquehanna Steam Electric Station (SSES), currently under construction. An essential part of this development is the reactor system transient analysis code, RETRAN, which is being developed under the sponsorship of the Electric Power Research Institute. Because of its importance to our in-house program, PP&L has joined with other utilities in requesting a timely review of RETRAN by the NRC, and issuance of an associated Safety Evaluation Report. (The RETRAN generic review request was transmitted to you by letter dated October 22, 1979 from Stanley Ragone, Virginia Electric and Power Company President.)

Because of our interest in this effort, PP&L is committed to paying a propor-tionate share of the NRC review fee, which we understand is approximately

$ 20,'000.

PP&L intends to use the RETRAN code to obtain a better understanding of reactor transients, to support operator and reactor engineering trainin'g pro-grams, and to perform plant-specific analyses to supplement vendor performed generic analyses. We anticipate using our "unqualified" RETRAN model of the Susquehanna units during their initial startup (currently expected to begin in mid-1981) to perform pre-test predictions and post-test analyses of selected startup tests. We plan to document the comparisons between our RETRAN model and plant startup test data in the form of a topical report, covering our RETRAN methodology for Susquehanna.

We believe that an early generic review of the RETRAN code would lead to an overall improvement in reactor safety by enhancing a utility's knowledge of reactor behavior during transients and postulated accidents, by providing an independent verification of vendor supplied safety analyses, and by en-couraging the development of utility technical staffs trained in safety and transient analysis. We would be pleased to discuss our plans with you in more detail.

Very truly yours, K43 N. W. Curtis, Vice President Engineering & Construction PENNSYLVANIA POWER 8 LIGHT COMPANY